Hair-drying brush



April 14,1925.

\ J. M. HOLCHIN HAIR DRYING BRUSH v Filed sept. 4, 1924 2 Sheets-Sheet lill INVENTOR.

ATTORNEY.

f April 14, 1925.

` AJ. M. HOLCHIN HAIR DRYING BRUSH Filedsept. 4,

1924 2 Sheets-Sheet 2 INVENTOR. M. fw

A TTORNEY N u 1,533,416 fea-reurorrlcs. -V

Joranl 1v1. HOLCHIN, or CLEVELAND, 01110.

HAIR-Devine BRUSH.

4Application led September To all whom it may concern.' Beit known that I, JOHN M. HoLoHrN, a Citizen of the United States, residing at Cleveland, in the county of'Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Hair-Drying Brushes,V of which thefollowing is a specification. Y

This invention relates to improvements 1n hair drying brushes having for an object the provision of a structure composed of a mm1- mum number of stamped or drawn sheet metal parts which may be comparatively 1nexpensively made up and easily assembled. Another yobject is to provide 'a brush of this character in which the hollow hair dryf ing teeth are drawn from a sheet of metal and are yieldably carried by the brush back. It is likewise an object to provide a brush of this character including a base plate from which the hair drying teeth aredrawn, and

\ a stamped cover plate designed to house a heating element.

Other objects will be in part obvious andv in partpointedout hereinafter.

. In order thatthe invention and its mode of operation may be readily understood by persons skilled in the art, I have 1n the accompanying illustrative. drawings',` and in the following detailedy description based thereon set out one possible embodiment of the same. i

Figurel is a plete/brush; y u v Figure 2 is a .vertical longitudlnal sectional view thereof; y u, u A Figure 3 is a fragmentary bottom plan viewwof the brush; l

Figure 4 is an enlarged longitudinal 'section.l of the. forward end of thebrush as shown'in Figure 2, showing the toothyformation and' connection between the tooth carrying plate andthe top or cover plate;

' Figure 5 isa detail sectionalfview showing a `modification whereinrv the teeth'arefsepa-` rately formedsand retained in the bottom plate by means of a retainingsheet of metal; Figure 6 is atop plan View ofthe brush; Figurev'?v is Aan edge view, parts being shown in section, this being a further modification of the brush; and I FigurerS 'is a detail sectional view of the yform shown in Figure' 7.

perspective view of the comf Having 'morevparticular reference'to the drawings throughout which. similar eharaeters'freference designate similar parts thls 4., 1924. semaine. 735,833.

improved hairdrying brush may be stated i' packing or heat insulating material 15 ari ranged between the housing 14 andthe re#L taining vplate 13, and a handle H connected to the housing 111 and carrying a current conducting cord O. t

In the' formation of thepreferred form of this invention I take a strip of sheet brass`r aluminum or the] like metal from which l draw the teethll as shown in Figures 2 and 1, this drawing operation assuringa smooth unbroken surface over-the entire area which will come in Contact withl the ha1r and scalp of the person using the brush.; This drawing operation by means of which the teeth' are formed obviously necessitates a number of successive 4operations before the teeth assume the configuration shown in Figure 2, that is, each 'succes sive operation further elongates the `rteeth until they are shaped'as shownin this ligure. l A heating element 12 is arranged upon this base or tooth carrying plate 1() and preferably consists of a heating wire ycovered with asbestos. As indicated in Figure 3xthis heating element is arranged'upon the base plate sofas to cover such anarea. as will assure uniform heating` of the set of hollow teeth. This heating element must be held in properV relative position with respect to the tooth carrying plate 10 and in order to accomplisl'ifthis I arrange thereabove a retainingplate 13 formed of sheet metall and turn its periphery downwardly into contact with the upper face of the toot-h carrying plate near its edge.

A hollow top lshell or housing 111'` is'arranged` above the heating element retaining plate 13 and as shown in Figure4, hasz a peripheral flange 16 snugly contacting with the peripheralportion `of the retaining plate 13, these associated portions being posithe heating element in proper position. The arran ement of the hollow housing 14 in space relation with respect to the retaining plate 13, provides a chamber in which a heat insulating material 15 may `be packed, the function of which is quite well known.

As shown in Figure 2, this housing 14 is provided near one end with an opening 18 through which an electric current conducting cord G enters for connection to the heating element. Riveted or otherwise attached to this housing 14 over the opening 18 .is a hollow sleeve or neck 19 whose outer end isltightly fitted into one end of a longitudinal passage-way through a wooden handl'e H. Al metal ferrule 2O is carried by the inner lend of the handle H and obviously is designed to prevent splitting of the handle portion.

It is `understood that in using this brush the current is turned on and the heating element 12 gradually heats the hollow teeth 11, the brush then being used in the same manner as an ordinary brush or comb. It is obvious that the heated teeth being drawn through the hair after shampooing or otherwise treating the hair will quickly and satisfactorily effect the drying thereof.

In Figure 5, I `how a modified form whichl includes in place of the integral formation of the teeth and base plate, a base plate 21 in which is formed a set of spaced openings22, the metal forming the walls of the openings being turned downwardly to form short necks 23.

Each of the ydrawn hollow teeth 24 is substantially cone shaped, the base portion 25 being flared outwardly for contact with the inner or vupper face of the base plate 21 as shown in Figure 5. .In order to retain these outwardly flared portions in snug contact with the base plate 21, I provide a tooth retaining plate 26 which tightly engages all of the teeth 24 and is held in such position by means of a heating element retaining plate 27 whose edge is turned downwardly into contact with the tooth retaining plate 26 as clearly shown in Figure 5. A heating element 28 is disposed between these last two named plates -and may be arranged in any preferred manner. A hollow housing `or shell 29 is arranged above a heating element retaining plate and includes a heat insul'a'ting material such as asbestos, `and has its edge or yperiphery extended downwardly over the .periphery of the tooth and heating lelement retaining plates and held in such positionthrough turning upwardly a flange portion 30 of the toot-h carrying plate 21. l.In a `further modification vas shown in Figures 6, 7 and 8 I employ a-base plate 311 having jshort hollow necks .or .sleeves 32 drawn .therefrom l.and provided with inwardly-turned shoulders or. flanges .33 at Athe 'flower Sends/as illustratedin the detailsecv tional View. Hollow elongated teeth 34, substantially cone shaped, have their base portions flared outwardly to engage over the shoulders S3 of the necks and sleeves 32, thereby providing a loose connection between said teeth and necks. Obviously the teeth 34 are normally positioned as shown in Figures 7 and 8 and in order to assure such positioning under normal conditions a coil expansion spring 35 is arranged in the sleeve or neck 32, having `one end bearing against the flared portion of the adjacent tooth 34, while kits other end bears against a spring retaining plate 36 which is of sufficient area to cover the entire sleeve or neck carrying base plate 31. A heating element retaining plate 87 is arranged above the spring retaining plate 26 and in addition to holding the heating element 38 in position, serves to prevent shifting of the spring retaining plate 36 through provision of the downwardly turned edge portion 39 as illustrated. A hollow shell or housing 40 is arranged above the heretofore described elcments and encloses `a heat insulating material 41, and further serves to form a rigid structure through connection to the base plate 31 as shown in Figure 8. This connection consists in turning upwardly and over the edge of the housing or shell 40 a flange 42 carried by the base plate 31.

A handle H is connected to the shell 40 by means of a hollow neck 43 whose inner end is flared and riveted or otherwise secured to the shell. The `outer end of this neck 43 is tightly forced into an opening which extends throughout the length of the handle H for the yreception of a current conducting cord (not shown). A ferrule 44 is secured to the inner end portion of the handle H for obvious reasons.

The construction of this brush with teeth mounted as just described will provide yieldability of the entire set of teeth and consequently prevent injury .to the scalp of ftheuser as is quite obvious. It is understood that in drying hair the'teeth of the brush often encounter tangles or irregularities vin the head formation and due to .the longitudinal and lateral yieldability of the lzeeth this condition will be properly cared In the formshown in Figures 1 to v4 inclusive the teeth .are drawn from a single sheet of .thin metal such as vbrass oraluminum and due to .this formation the expense of manufacture is considerably reduced. The fact that practically the entire structure is either stamped or drawn from light sheet metal provides for comparatively inexpensive manufacture andthe small number of parts obviously greatly facilitates `assembly of vthe structure.

.Certain :changes in theminor details .of structure .may be resorted toandwsuch of of the appended claims I consider within the spirit of my invention.

I claim: f

l. A hair drying brush including a sectional hollow back, a set of hollow teeth carried by the back and having com1nunication with thel interior, an electric heating element arranged in the back, and a handle attached to the back.

2. A hair drying brush including a sectional hollow back, a set of hollow teeth carried by the back and having direct communication with the interior, an electricv heating element arranged in the back over the inner ends of the teeth, a heating element retaining plate snugly contacting with the heating element and having its periphery clamped between and at the point of inter-connection of the sectional back, and a handle attached to the back.

3. A hair drying brush including a sectional hollow back, said back comprising a hollow top shell having an opening at one end, a hollow handle arranged over the opening, a base section having connection at its periphery to the top shell, a set of hollow drawn metal teeth carried the base section, and a heating element arranged in the hack over the inner ends of the teeth.

4. A hair drying brush formed from sheet metal and comprising a two-part back, va handle attached to the back, one part of said back having a set of openings, a set of hollow teeth having flared inner ends to take over the walls about the openings, means for retaining the flared ends and walls in snug relative contact, and an electric heating element arranged in the back.

5. A hair drying brush formed from sheet metal and comprising a two-part back, a handle attached to the back, one part of rsaid back having a set of openings, a set of hollow teeth having flared f inner ends to take over the walls about the openings, a retaining plate arranged.' over the flared ends of the teeth, an electric heating element over the retaining plate and means for holding the heating element in proper relative position.

6. A hair drying brush formed from sheet metal and comprising a two-part back, a handleattached to the back, one part of said back having a set of openings, outwardly turned flanges formed about the openings, a set of hollow teeth having outwardly flared inner ends fitting over said flanges and contacting with the inner face of said one part, a retaining plate snugly contacting with the flared ends of the ho1' low teeth, and an electric heating element arranged upon said plate. l

In testimony whereof I aiiX my signature.

JOHN M. I-IOLGHIN. 

